Multi-viewpoint 3d display screen and 3d display terminal

ABSTRACT

The present disclosure relates to the field of 3D images, and discloses a multi-viewpoint 3D display screen, comprising: a display panel, comprising a plurality of composite pixels, wherein each composite pixel of the plurality of composite pixels comprises a plurality of composite subpixels, and each composite subpixel of the plurality of composite subpixels comprises a plurality of subpixels corresponding to a plurality of viewpoints of the multi-viewpoint 3D display screen; and a grating, directly bonded to the display panel. In the multi-viewpoint 3D display screen in the present disclosure, the grating without a pad layer can be realized, and meanwhile, a 3D viewing effect under a predetermined distance is ensured, and an overall thickness and weight are reduced, thereby being convenient for installation and transportation. The present disclosure further discloses a 3D display terminal.

The present disclosure claims priority to the Chinese Patent Applicationwith an application number of 2019112313620 and a title of“Multi-Viewpoint Naked-eye 3D Display Screen and Naked-eye 3D DisplayTerminal”, filed to China National Intellectual Property Administrationon Dec. 5, 2019, the disclosures of which are hereby incorporated byreference.

TECHNICAL FIELD

The present disclosure relates to the field of 3D images, and forexample, relates to a multi-viewpoint 3D display screen and a 3D displayterminal.

BACKGROUND

In a structure of a conventional 3D display screen, gratings are onlyarranged on one side or both sides of a 2D display panel to provide a 3Ddisplay effect, while both transmission and display of 3D images orvideos are based on the 2D display panel. The dilemma problems ofreduction of resolution and sharp increase of a calculating amount ofrendering are caused. Meanwhile, a thickness of the display panel isalso increased, and particularly, for a large-sized display panel, theoverall mass of the panel is increased due to the increase of thethickness, leading to the problems of installation and transportationwhen in use.

The background is only for the convenience of understanding relatedtechnologies in the field, and is not regarded as an acknowledgment ofthe existing technology.

SUMMARY

In order to provide a basic understanding of some aspects of thedisclosed embodiments, a brief summary of some embodiments is givenbelow. The brief summary is not intended to identify key/importantcomponents or describe the scope of protection of the present invention,but to be a preface to the following detailed description.

Embodiments of the present disclosure provide a multi-viewpoint 3Ddisplay screen and a 3D display terminal, so as to overcome or relieveat least some of the above mentioned problems.

In some embodiments, a multi-viewpoint 3D display screen is provided,comprising: a display panel, comprising a plurality of composite pixels,wherein each composite pixel of the plurality of composite pixelscomprises a plurality of composite subpixels, and each compositesubpixel of the plurality of composite subpixels comprises a pluralityof subpixels corresponding to a plurality of viewpoints of themulti-viewpoint 3D display screen; and a grating, directly bonded to thedisplay panel.

In some embodiments, a width p of each subpixel of the plurality ofsubpixels is constructed as: p

(d×q)/(n×D), wherein d represents a sum of a thickness of the displaypanel and a thickness of the grating; q represents a reference distanceof an interpupillary distance; D represents a preset viewing distance ofthe multi-viewpoint 3D display screen; and n represents a refractiveindex of the grating.

In some embodiments, 1.3

n

1.6.

In some embodiments, n=1.46.

In some embodiments, each composite subpixel comprises a plurality ofsubpixels that are arranged in a single row or a single column; or eachcomposite subpixel comprises a plurality of subpixels that are arrangedin a form of array.

In some embodiments, the plurality of composite subpixels comprise atleast one of red composite subpixels, green composite subpixels and bluecomposite subpixels.

In some embodiments, a size of the multi-viewpoint 3D display screen isgreater than or equal to 43 inches.

In some embodiments, a size of the multi-viewpoint 3D display screen is55 inches, 60 inches, 80 inches or 100 inches; or the multi-viewpoint 3Ddisplay screen is a cinema screen.

In some embodiments, a width of each subpixel of the plurality ofsubpixels is less than 0.008 mm.

In some embodiments, a width of each subpixel of the plurality ofsubpixels is less than 0.0076 mm.

In some embodiments, the display panel comprises: a first substrate; asecond substrate, arranged at an interval with the first substrate; acolor filter, attached to a surface, facing the second substrate, of thefirst substrate; a Thin Film Transistor (TFT), attached to a surface,facing the first substrate, of the second substrate; a polarizer,attached to a surface, away from the first substrate, of the secondsubstrate; and a liquid crystal layer, arranged between the firstsubstrate and the second substrate, wherein the grating is directlyjointed to a surface, away from the second substrate, of the firstsubstrate.

In some embodiments, the grating is obliquely bonded to the displaypanel.

In some embodiments, the grating comprises a plurality of cylindricalprism gratings.

In some embodiments, a 3D display terminal is provided, comprising theabove multi-viewpoint 3D display screen.

In some embodiments, the 3D display terminal further comprises a 3Dprocessing device, configured to render corresponding subpixels in theplurality of composite subpixels in the multi-viewpoint 3D displayscreen based on 3D signals.

In some embodiments, the 3D processing device is further configured toperform displacement rendering for subpixels in composite subpixelsaccording to viewpoint positions corresponding to subpixels renderedcurrently and viewpoint positions corresponding to subpixels renderedsubsequently.

In some embodiments, the 3D display terminal further comprises a memory,configured to store corresponding relationships of subpixels andviewpoints, wherein the 3D processing device is configured to acquirethe corresponding relationships.

In some embodiments, the 3D display terminal further comprises an eyepositioning data acquisition device, configured to acquire eyepositioning data of a user.

In the multi-viewpoint 3D display screen and the 3D display terminal inthe present disclosure, the grating can be directly combined onto thedisplay panel, thereby effectively reducing the thickness and weight ofthe multi-viewpoint 3D display screen and the 3D display terminal.

The above general description and the description below are exemplaryand explanatory only, and are not intended to limit the presentdisclosure.

DESCRIPTION OF DRAWINGS

One or more embodiments are illustrated by the corresponding drawings,and the illustrations and drawings do not limit the embodiments.Elements having the same reference numerals in the drawings are shown assimilar elements, and the drawings are not intended to limit the scale,wherein:

FIGS. 1A-1D are structural schematic diagrams of a multi-viewpoint 3Ddisplay screen and a 3D display terminal according to embodiments of thepresent disclosure;

FIG. 2 is a structural schematic diagram of hardware of the 3D displayterminal according to the embodiments of the present disclosure;

FIG. 3 is a structural schematic diagram of software of the 3D displayterminal according to the embodiments of the present disclosure;

FIGS. 4A-4C are schematic diagrams of a composite pixel according to theembodiments of the present disclosure;

FIGS. 5A-5E are schematic diagrams of formats and contents of imagesincluded in video frames of 3D video signals according to theembodiments of the present disclosure;

FIG. 6 is a schematic diagram of arranging at least two 3D processingdevices provided by the embodiments of the present disclosure;

FIG. 7A is a schematic diagram of 3D optical imaging of themulti-viewpoint 3D display screen according to the embodiments of thepresent disclosure;

FIG. 7B is a schematic diagram of optical paths of a lens zone of themulti-viewpoint 3D display screen according to the embodiments of thepresent disclosure;

FIG. 8 is a structural schematic diagram of a multi-viewpoint 3D displayscreen according to the embodiments of the present disclosure;

FIGS. 9A-9B are schematic diagrams of splitting pixels of themulti-viewpoint 3D display screen according to the embodiments of thepresent disclosure; and

FIG. 10 is a structural schematic diagram of a multi-viewpoint 3Ddisplay screen according to the embodiments of the present disclosure.

REFERENCE NUMERALS

100: multi-viewpoint 3D display screen; CP: composite pixel; CSP:composite subpixel; P: subpixel; 1000: 3D display terminal; 101:processor; 122: register; 130: 3D processing device; 131: buffer; 140:video signal interface; 150: eye positioning device; 160: eyepositioning data interface; 200: 3D display terminal; 201: processor;202: external memory interface; 203: memory; 204: USB interface; 205:charging management module; 206: power supply management module; 207:battery; 208: mobile communication module; 209: antenna; 210: wirelesscommunication module; 211: antenna; 212: audio module; 213: loudspeaker;214: telephone receiver; 215: microphone; 216: earphone jack; 217: key;218: motor; 219: indicator; 220: SIM card interface; 221: shooting unit;222: register; 223: GPU; 224: codec; 230: sensor module; 2301: proximitylight sensor; 2302: ambient light sensor; 2303: pressure sensor; 2304:air pressure sensor; 2305: magnetic sensor; 2306: gravity sensor; 2307:gyroscope sensor; 2308: acceleration sensor; 2309: distance sensor;2310: temperature sensor; 2311: fingerprint sensor; 2312: touch sensor;2313: bone conduction sensor; 310: application program layer; 320:framework layer; 330: core class library and Runtime; 340: kernel layer;400: composite pixel; 410, 420, 430, 440, 450, 460, 470, 480 and 490:composite subpixels; 411, 421, 431, 441, 451, 461, 471, 481 and 491:subpixels; 501 and 502: two images in a parallel format; 503 and 504:two images in an up-down format; 505: composite image in a left-rightinterlaced format; 506: composite image in an up-down interlaced format;507: composite image in a checkerboard format; D: distance betweensurface of display screen and eyes; d: thickness of display screen; q:distance between two eyes; p: distance between adjacent pixels; n′:refractive index in air; n: refractive index of grating; θ1: includedangle between emergent ray and normal of lens; θ2: included anglebetween incident ray and normal of lens; 800: multi-viewpoint 3D displayscreen; 810: display panel; 820: grating; 811: display TFT layer; and812: polarizer.

DETAILED DESCRIPTION

For more detailed understanding of characteristics and technicalcontents of embodiments of the present disclosure, the implementation ofthe embodiments of the present disclosure will be described in detailbelow with reference to the accompanying drawings, and the accompanyingdrawings are used for reference only, instead of limiting theembodiments of the present disclosure.

FIG. 7A shows a schematic diagram of optical paths of imaging of amulti-viewpoint 3D display screen (such as: a multi-viewpoint naked eye3D display screen), and if an audience views 3D contents at a distanceof D from the screen, a thickness d required by the multi-viewpoint 3Ddisplay screen may be calculated according to geometrical relationshipsof rays. For any ray emitted by the display screen, the ray enters airat θ1 (θ1 shown in FIG. 7B) and finally enters eyes of the audience.Parameters in the figure are expressed as: D represents a distancebetween the surface of the display screen and the eyes; d represents thethickness of the display screen; q represents a distance between the twoeyes; p represents a distance between adjacent pixels; n′ represents arefractive index in air; and n represents a refractive index of thegrating.

FIG. 7B is an amplified schematic diagram of a ray at a lens, and a rayemitted by the multi-viewpoint 3D display screen penetrates through anypoint of a convex lens, enters air and then finally enters the eyes of auser. The included angle between an incident ray and a normal of thelens is θ2, the included angle between an emergent ray and the normal ofthe lens is θ1, and the following formula is defined according to arefractive index:

$\begin{matrix}{\frac{n}{n^{\prime}} = {\frac{1.46}{1} = \frac{\sin\theta_{1}}{\sin\theta_{2}}}} & \end{matrix}$

The included angle between the emergent ray/the incident ray and thenormal is smaller, thus:

$\begin{matrix}{{\lim\limits_{\theta_{1}\rightarrow 0}\frac{\sin\theta_{1}}{\sin\theta_{2}}} = {\frac{\theta_{1}}{\theta_{2}} = \frac{\tan\theta_{1}}{\tan\theta_{2}}}} & \end{matrix}$

According to the formulas {circle around (1)} and {circle around (2)},

$\frac{\sin\theta_{1}}{\sin\theta_{2}} = {\frac{\tan\theta_{1}}{\tan\theta_{2}} = \frac{{1.4}6}{1}}$

is obtained, so that:

$\begin{matrix}{\frac{\tan\theta_{1}}{\tan\theta_{2}} = \frac{1.46}{1}} & \end{matrix}$

In FIG. 7A,

${{\tan\theta_{1}} = \frac{- q}{D}},{{{{and}\tan\theta_{2}} = \frac{- p}{d}};}$

according to {circle around (3)}, the following equality relationship isobtained:

$\begin{matrix}{\frac{\tan\theta_{1}}{\tan\theta_{2}} = {\frac{1.46}{1} = {\frac{- q}{D}:\frac{- p}{d}}}} & \end{matrix}$

Generally, the diagonal line of a 55-inch display screen is 55 inches,which is 1,397 mm. Generally, if a length-width ratio is 16:9, a lengthis 1,218 mm, and a width is 685 mm. A 4K display screen has 3,840×2,160pixels. The dimension of each pixel: a length is 1,218/3,840=0.317 mm,and a width is 685/2,160=0.317 mm. A width of the pixel of the displayscreen is about 0.317 mm. Further, according to RGB three-colorsplitting (standard RGB arrangement), a width of the subpixel is 0.106mm, p=0.106 mm (a pitch of the subpixels of the 55-inch 4K displayscreen), D=5 m (a comfortable distance for viewing a 3D display effectof the 55-inch display screen), and q=0.062 m (an average distancebetween pupils of two eyes of an Asian).

According to {circle around (4)},

$\begin{matrix}{d = {\frac{1.46*D*p}{q} = {\frac{1.46*5*0.106}{{0.0}62} \approx {12.4{mm}}}}} & \end{matrix}$

FIG. 8 shows a structure of a multi-viewpoint 3D display screen 800, andcomprises a display panel 810 and a grating 820; the display panel 810comprises a display TFT layer 811 and a polarizer 812; a thickness ofthe display TFT layer 811 is 0.5 mm; a thickness of the polarizer 812 is0.1 mm; a thickness of the grating 820 is 0.3 mm; and an overallthickness is 0.9 mm, which is short of 11.5 mm through comparison with athickness of 12.4 mm required by a comfortable display effect;generally, a pad layer (a glass gasket) with a supplementary thicknessneeds to be added between the display panel and the grating; however,sizes of mainstream television screens are over 50 inches and 55 inchesat present, a technique of attaching large-sized glass onto the displayscreen is extremely high in difficulty, and the weight of the displayscreen is larger. In addition, a thickness of the display screen isobviously increased, so that an installation space is occupied; and dueto the increase of the weight, a corresponding thickness needs to beadditionally increased for the display screen and an installationstructure of the display screen, or a corresponding installationstructure needs to be independently designed, thereby causing theproblems of inconvenience in use and production of multiplespecifications.

Embodiments of the present disclosure provide a novel design for a pixelstructure. Equivalently, an existing TFT pixel is split into a pluralityof TFT pixels, and the same 3D display effect may be realized at apredetermined distance under the condition of not increasing thethicknesses of the display panel and the display screen.

According to {circle around (4)},

$\begin{matrix}{p = \frac{d*q}{1.46*D}} & \end{matrix}$

Under the condition of not changing the thickness of the display screen,d=0.9 mm. Other values are not changed, D=5 m, q=0.062 m, and n=1.46;and the values are substituted into {circle around (6)}, and the changedp value is solved, which is set as p′.

$\begin{matrix}{p^{\prime} = {{\frac{d*q}{1\text{.46}*D}*} = {\frac{0.9*0.062}{1.46*5} = {0.0076{mm}}}}} & \end{matrix}$

According to a calculating result of {circle around (7)}, when a pitchof the subpixels of the multi-viewpoint 3D display screen is split intothe pixels from the original 0.106.4 mm to about 0.0076 mm, thethickness of the display screen does not need to be increasedartificially, and the same 3D display effect may be realized.

After the above pixels are split, the pad layer does not need to befurther added between the display panel and the grating in themulti-viewpoint 3D display screen, and the predetermined distance can beachieved, so as to realize the same 3D display effect.

Manners of splitting the TFT pixel are shown in FIG. 9A and FIG. 9B, anda multi-view 3D display effect may be realized by independentlycontrolling left views and right views.

A splitting manner of a first pixel is shown in FIG. 9A. Every twoadjacent pixels are in one group, and each group includes the left viewsand the right views. The pixels marked with L show the left views, andthe pixels marked with R show the right views.

A splitting manner of a second pixel is shown in FIG. 9B, every N pixelsare in one group, and for example, N is 5. In the figure, the pixelsmarked with same number show the left views or the right viewssimultaneously or in a time sharing manner, so as to realize 3D display.

The introduction for the above embodiments contrastively illustratesthat how the pitch between the subpixels affects the thickness of thedisplay screen; and in an actual application process of the 3D displayscreen, the pitch between the subpixels can be ensured, and namely, athickness of the display terminal and the thickness of the displayscreen may be ensured, so as to avoid additional increase of the padlayer. Meanwhile, as the quantity of the subpixels is multiplied afterbeing split, a 2D display screen which has the same size as the 3Ddisplay screen has multiplied display resolution. For example, if thedisplay resolution of the 2D display screen with the same size is M1×N1,the display resolution of the 3D display screen with the same size isINT(T/i)×M1×N1, wherein INT represents an integral function, Trepresents the multiple of splitting, such as 14, and i represents thenumber of viewpoints, and for example, is 2 or 5 or 7.

In some embodiments of the present disclosure, as shown in FIGS. 10 and1A-1C, a multi-viewpoint 3D display screen 100 is provided, comprising adisplay panel 110 and a grating 120 arranged on the display panel 110;m×n composite pixels CP are arranged on the display panel 110, so as todefine display resolution of m×n; the composite pixels CP comprise aplurality of rows of composite subpixels CSP; each row of compositesubpixels CSP is composed of i subpixels P corresponding to iviewpoints, and i

3; and the color of the subpixels in each row of composite subpixels CSPmay be set as the same. The size of the multi-viewpoint 3D displayscreen in the embodiments is the same as a size of the 2D display screenwith the same size and display resolution, and accordingly, a pitchbetween the subpixels P in the composite pixels CP in the embodiments issmaller than a pitch between subpixels in the 2D display screen with thesame display resolution; and for example, the above embodiment ofsplitting the pixels of the 55-inch display screen realizes theresolution of 4 k relative to the 55-inch 2D display screen, and a pitchbetween the subpixels P in the embodiment is 0.0076 mm, which isapproximately decreased by 14 times, thereby realizing an effect withoutthe pad layer. The display screen in the present disclosure can beparticularly applied in a scenario of a large-sized display screen, suchas a display screen with a size of over 50 inches, so that the weightcan be effectively reduced.

In the embodiments of the present disclosure, the grating may bedirectly bonded to the display panel.

According to the above embodiments, it may be known that a thickness ofthe pad layer may be adjusted by adjusting a pitch between the subpixelsuntil the pad layer is removed; and further, a pitch between thesubpixels P is configured to attach the grating 120 directly to thedisplay panel 110.

In some embodiments, a pitch p between the subpixels P meets thefollowing relation: p

(d×q)/(n×D), wherein d represents a sum of a thickness of the displaypanel and a thickness of the grating; q represents the average distancebetween pupils of two eyes; D represents a predetermined viewingdistance of the multi-viewpoint 3D display screen; n represents therefractive index of the grating, and for example, 1.3

n

1.6; and in some occasions that the structure and a material of thedisplay screen are set, n=1.46. In the embodiments of the presentdisclosure, a width of the subpixel is set as above, so that the gratingmay be directly combined onto the display panel, and a height of the padlayer is zero, so as to realize the effect without the pad layer.

In some embodiments, a width of the subpixel in each composite subpixelis less than 0.008 mm, or less than 0.0076 mm.

In some embodiments, each composite subpixel comprises a single row or asingle column of a plurality of subpixels.

In some embodiments, each composite subpixel comprises a plurality ofsubpixels in a form of array.

In some embodiments, the plurality of composite subpixels comprise redcomposite subpixels, green composite subpixels and blue compositesubpixels.

In some embodiments, a size of the multi-viewpoint 3D display screen isgreater than or equal to 43 inches, such as 50 inches, 55 inches, 60inches, 80 inches, 100 inches, 110 inches and the like.

In some embodiments, the multi-viewpoint 3D display screen is aMicro-Led display screen. The above TFT layer comprises a drivingcircuit and a light-emitting circuit of a Micro-LED.

In some embodiments of the present disclosure, for an overall pixelwidth of the composite pixels CP, a width of each grid of the grating isset; generally, for the requirement of no pad layer, a pitch between thesubpixels is acquired after calculation, and namely, a width of eachgrid of the grating may be determined according to the number of thesubpixels in the composite subpixels; and for example, if the compositesubpixels comprise i subpixels, a width of each grid of the grating isi×p.

In the embodiments of the present disclosure, the display panel 110 maybe a liquid crystal panel, and specifically, the display panel 110comprises: a pair of substrates separated from each other; a colorfilter attached to a surface, facing a second substrate, of a firstsubstrate in the pair of substrates; a TFT attached to a surface, facingthe first substrate, of the second substrate; another polarizer attachedto a surface, away from the first substrate, of the second substrate;and a liquid crystal layer arranged between the pair of substrates,wherein the grating 120 is directly jointed to a surface, away from thesecond substrate, of the first substrate.

In summary of the embodiments of the present disclosure, a plurality ofcylindrical prism gratings in the grating 120 are parallelly andobliquely bonded to the display panel, so as to prevent generation ofmoire patterns.

According to the above embodiments of the present disclosure, thepresent disclosure further relates to a 3D display screen which has thesame size as a 2D display screen; and a subpixel zone in the original 2Ddisplay screen is split into one, two or a plurality of compositepixels, so as to realize an effect without a pad layer. For example, inthe above embodiment of splitting the pixels of the 55-inch displayscreen, the original subpixel is split into 14 subpixels, and for thecondition that viewpoints are 2, 7 composite pixels may be utilized fordisplaying one pixel point in the original 2D display screen; if thesame resolution needs to be ensured, subpixels corresponding toviewpoints i in the 7 composite pixels are configured to display samecolor brightness; and if the resolution needs to be multiplied, thesubpixels corresponding to the viewpoints i in the 7 composite pixelsmay be configured to display different color brightness, and thespecific color brightness may be acquired by calculating the colorbrightness of surrounding pixel points. If the viewpoints are 5, due toan aliquant condition, the 14 subpixels are distributed into 2 compositepixels, and the number of viewpoints in each composite pixel is 7, andnamely, each composite subpixel comprises 7 subpixels; and redundantsubpixels may be controlled to be not displayed, or non-interferingcolor brightness is displayed. Accordingly, grids of a grating may notcover the subpixels that are not displayed; at the moment, ifsame-resolution display is required, the subpixels corresponding to theviewpoints i in the 2 composite pixels may display the same colorbrightness; and if the resolution needs to be multiplied, the colorbrightness of the two subpixels may be set according to the colorbrightness of surrounding subpixels.

In some embodiments of the present disclosure, a 3D display terminal1000 is provided, comprising: the multi-viewpoint 3D display screen 100,comprising m×n composite pixels CP, so as to define the displayresolution of m×n; a video signal interface 140, used for receivingvideo frames of 3D video signals, wherein each video frame of the 3Dvideo signals includes two images with the resolution of m×n or includesa composite image with the resolution of 2m×n or m×2n; and at least one3D processing device 130.

In some embodiments, each composite pixel CP comprises a plurality ofcomposite subpixels CSP, and each composite subpixel is composed of isubpixels of the same color, corresponding to i viewpoints, wherein i

3.

In some embodiments, the at least one 3D processing device 130 isconfigured to render at least one subpixel in each composite subpixelbased on one of the two images, and render at least another subpixel ineach composite subpixel based on the other one of the two images.

In some other embodiments, the at least one 3D processing device 130 isconfigured to render at least two subpixels in each composite subpixelbased on composite images.

In some embodiments, the 3D processing device 130 is configured torender the subpixels, corresponding to the viewpoints, in the compositepixels based on 3D image signals.

FIG. 1A shows a schematic diagram of the multi-viewpoint 3D displayscreen (such as: the multi-viewpoint naked eye 3D display screen)according to an embodiment of the present disclosure, and FIG. 1B showsa structural schematic diagram of the 3D display terminal 1000 providedby an embodiment of the present disclosure. With reference to FIG. 1Aand FIG. 1B, the 3D display terminal 1000 is provided in an embodimentof the present disclosure, and may comprise the multi-viewpoint 3Ddisplay screen 100, at least one 3D processing device 130 and the videosignal interface 140 used for receiving the video frames of the 3D videosignals.

In the embodiments shown in FIG. 1A and FIG. 1B, the multi-viewpoint 3Ddisplay screen 100 may comprise the m×n composite pixels, so as todefine the display resolution of m×n. As shown in FIG. 1A and FIG. 1B,the multi-viewpoint 3D display screen 100 comprises m columns and n rowsof composite pixels CP, so as to define the display resolution of m×n.

In some embodiments, each composite pixel CP comprises a plurality ofcomposite subpixels, and each composite subpixel is composed of isubpixels of the same color, corresponding to i viewpoints, wherein i

2. In the embodiment shown in FIG. 1A, i=6, but it may be contemplatedthat i may be other numerical values. In the shown embodiment, themulti-viewpoint 3D display screen may correspondingly have i (i=6)viewpoints (V1-V6), but it may be contemplated that the multi-viewpoint3D display screen may correspondingly have more or less viewpoints.

With reference to FIG. 1A and FIG. 4A, in the shown embodiments, eachcomposite pixel comprises three composite subpixels, and each compositesubpixel is composed of 6 subpixels of the same color, corresponding to6 (i=6) viewpoints. The three composite subpixels respectivelycorrespond to three colors: red (R), green (G) and blue (B). In otherwords, the three composite subpixels of each composite pixelrespectively have 6 red subpixels, 6 green subpixels or 6 bluesubpixels.

In the embodiments shown in FIG. 1A and FIG. 4A, composite subpixels410, 420 and 430 in a composite pixel 400 are parallelly arranged. Thecomposite subpixels 410, 420 and 430 respectively comprise subpixels411, 421 and 431 in a form of a single row. However, it may be thoughtof different arrangement manners of the composite subpixels in thecomposite pixels or different arrangement forms of the subpixels in thecomposite subpixels.

As shown in FIG. 4B, each of composite subpixels 440, 450 and 460comprises subpixels 441, 451 and 461 in a form of a single column.

As shown in FIG. 4C, three composite subpixels 470, 480 and 490 in thecomposite pixel 400 are arranged in a shape of a Chinese character‘PIN’. In an embodiment shown in FIG. 4C, subpixels 471, 481 and 491 inthe respective composite subpixels 470, 480 and 490 may be in a form ofarray (3×2).

In some embodiments, for example, as shown in FIGS. 1A-1C, the 3Ddisplay terminal 1000 may be provided with a single 3D processing device130. The single 3D processing device 130 is configured to simultaneouslyprocess the rendering for each composite subpixel of all the compositepixels of the large-sized 3D display screen 100.

In some other embodiments, for example, as shown in FIG. 6 , the 3Ddisplay terminal 1000 may be provided with at least two 3D processingdevices 130 which are configured to process the rendering for eachcomposite subpixel of all the composite pixels of the large-sized 3Ddisplay screen 100 in a parallel, serial or parallel-serial combinationmanner.

Those skilled in the art should understand that the at least two 3Dprocessing devices may be distributed in other manners and areconfigured to parallelly process the multi-row and multi-columncomposite pixels or composite subpixels of the large-sized 3D displayscreen 100, which falls into the scope of the present invention.

In some embodiments, the at least one 3D processing device 130 mayfurther selectively comprise a buffer 131, so as to buffer the receivedvideo frames.

In some embodiments, the at least one 3D processing device is a FieldProgrammable Gate Array (FPGA) chip or an Application SpecificIntegrated Circuit (ASIC) chip or an FPGA chipset or an ASIC chipset.

Continuing to refer to FIG. 1A, the 3D display terminal 1000 may furthercomprise a processor 101 which is in communication connection to the atleast one 3D processing device 130 through the video signal interface140. In some embodiments shown herein, the processor 101 is comprised ina computer or an intelligent terminal, such as a mobile terminal, orserves as a processor unit. However, it may be contemplated that in someembodiments, the processor 101 may be arranged at the outer part of the3D display terminal, and for example, the 3D display terminal may be themulti-viewpoint 3D display screen provided with the 3D processingdevice, such as a non-intelligent 3D television.

For simplicity, exemplary embodiments of the 3D display terminalhereinafter internally comprise the processor. Then, the video signalinterface 140 is constructed as an internal interface for connecting theprocessor 101 and the 3D processing device 130, and the structure may beunderstood more clearly with reference to a 3D display terminal 200implemented in a mobile terminal manner, which is shown in FIG. 2 andFIG. 3 . In some embodiments of the present invention, the video signalinterface 140 serving as the internal interface of the 3D displayterminal 200 may be an MIPI, a mini-MIPI, an LVDS interface, a min-LVDSinterface or a Display Port. In some embodiments, as shown in FIG. 1A,the processor 101 of the 3D display terminal 1000 may further comprise aregister 122. The register 122 may be used for temporarily storinginstructions, data and addresses.

In some embodiments, the 3D display terminal 1000 may further comprisean eye positioning device or an eye positioning data interface used foracquiring real-time eye positioning data, so that the 3D processingdevice 130 may be configured to render corresponding subpixels in thecomposite pixels (composite subpixels) based on the eye positioningdata. For example, in an embodiment shown in FIG. 1B, the 3D displayterminal 1000 further comprises an eye positioning device 150 which isin communication connection to the 3D processing device 130, so that the3D processing device 130 may be configured to directly receive the eyepositioning data. In an embodiment shown in FIG. 1C, for example, theeye positioning device (not shown) may be directly connected with theprocessor 101, while the 3D processing device 130 is configured toacquire the eye positioning data from the processor 101 through an eyepositioning data interface 151. In some other embodiments, the eyepositioning device may be simultaneously connected with the processorand the 3D processing device, so that on the one hand, the 3D processingdevice 130 may be configured to directly acquire the eye positioningdata from the eye positioning device, and on the other hand, otherinformation acquired by the eye positioning device may be processed bythe processor.

With reference to FIGS. 1A-C and FIGS. 5A-E, the transmission anddisplay of the 3D video signals in the 3D display terminal in someembodiments of the present disclosure are described. In the shownembodiments, the display screen 110 may define 6 viewpoints V1-V6, andthe eyes of the user may view display of the corresponding subpixel inthe composite subpixels of all the composite pixels in the display panelof the multi-viewpoint 3D display screen 110 at each viewpoint (aspatial position). Two different images viewed by the eyes of the userat different viewpoints form a parallax, and a 3D image is composited ina brain.

In some embodiments of the present disclosure, the 3D processing device130 is configured to receive, for example, video frames of decompressed3D video signals from the processor 101 through for example the videosignal interface 140 serving as the internal interface. Each video framemay include two images with the resolution of m×n or include a compositeimage with the resolution of 2m×n or m×2n, or is composed thereof.

In some embodiments, the two images or the composite image may comprisedifferent types of images and may be in various arrangement forms.

As shown in FIG. 5A, each video frame of the 3D video signals includestwo images 501 and 502 with the resolution of m×n, which are in aparallel format, or is composed of the two images 501 and 502. In someembodiments, the two images may be respectively a left eye parallaximage and a right eye parallax image. In some embodiments, the twoimages may be respectively a rendered color image and a depth-of-field(DOF) image.

As shown in FIG. 5B, each video frame of the 3D video signals includestwo images 503 and 504 with the resolution of m×n, which are in anup-down format, or is composed of the two images 503 and 504. In someembodiments, the two images may be respectively a left eye parallaximage and a right eye parallax image. In some embodiments, the twoimages may be respectively a rendered color image and a DOF image.

As shown in FIG. 5C, each video frame of the 3D video signals includes acomposite image 505 with the resolution of 2m×n, which is in aleft-right interlaced format. In some embodiments, the composite imagemay be a left eye and right eye parallax composite image in a left-rightinterlaced format and a rendered color and DOF composite image in aleft-right interlaced format.

As shown in FIG. 5D, each video frame of the 3D video signals includes acomposite image 506 with the resolution of m×2n, which is in an up-downinterlaced format. In some embodiments, the composite image may be aleft eye and right eye parallax composite image in an up-down interlacedformat. In some embodiments, the composite image may be a rendered colorand DOF composite image in an up-down interlaced format.

As shown in FIG. 5E, each video frame of the 3D video signals includes acomposite image 507 with the resolution of 2m×n, which is in acheckerboard format. In some embodiments, the composite image may be aleft eye and right eye parallax composite image in a checkerboardformat. In some embodiments, the composite image may be a rendered colorimage and a DOF image in a checkerboard format.

Those skilled in the art will understand that the embodiments shown inthe drawings are only schematic, and the two images or the compositeimage included in each video frame of the 3D video signals may compriseother types of images and may be in other arrangement forms, which fallsinto the scope of the present invention.

In some embodiments, the resolution of m×n may be resolution over FullHigh Definition (FHD), comprising but not limited to 1920×1080,1920×1200, 2048×1280, 2560×1440, 3840×2160 and the like.

In some embodiments, after the video frames of the two images arereceived, the at least one 3D processing device 130 is configured torender at least one subpixel in each composite subpixel based on one ofthe two images and render at least another subpixel in each compositesubpixel based on the other one of the two images. Similarly, in someembodiments, after the video frame comprising the composite image isreceived, the at least one 3D processing device is configured to renderat least two subpixels in each composite subpixel based the compositeimage. For example, at least one subpixel is rendered according to afirst image (part) in the composite image, and at least another subpixelis rendered according to a second image (part).

In some embodiments, this is, for example, dynamic rendering based onthe eye positioning data.

As explanation but not limit, since in the two images included in dataof the video frames received by the 3D processing device 130 in theembodiments of the present disclosure through, for example, the videosignal interface 140 constructed as the internal interface, theresolution of each image (or a half of the resolution of the compositeimage) corresponds to the composite pixels (comprising the compositesubpixels divided according to the viewpoints) divided according to theviewpoints. On the one hand, since information of the viewpoints isunrelated to a transmission process, the 3D display with a smallcalculating amount of processing and non-damaged resolution can berealized; and on the other hand, since the composite pixels (compositesubpixels) are arranged correspondingly to the viewpoints, the renderingfor the display screen can be realized in a ‘point-to-point’ manner,thereby greatly reducing the calculating amount. By contrast, thetransmission and display of images or videos of a conventional 3Ddisplay screen are still based on a 2D display panel, the problems ofreduction of the resolution and sharp increase of a calculating amountof rendering exist, and the problems of multiple times of formatadjustment and display adaptation of the images or the videos furtherexist probably.

In some embodiments, the register 122 of the processor 101 may be usedfor receiving information related to display requirements of themulti-viewpoint 3D display screen 110, and the information is typicallyinformation unrelated to the i viewpoints and related to the resolutionof m×n of the multi-viewpoint 3D display screen 110, so that theprocessor 101 is configured to send the video frames of the 3D videosignals according with the display requirements thereof to themulti-viewpoint 3D display screen 110. For example, the information maybe a data packet used for initially establishing video transmission andsending.

Therefore, when the video frames of the 3D video signals aretransmitted, the processor 101 does not need to consider the informationrelated to the i viewpoints of the multi-viewpoint 3D display screen 110(i

3). However, the processor 101 can be configured to send the videoframes of the 3D video signals according with the requirements thereofto the multi-viewpoint 3D display screen 110 by virtue of theinformation, related to the resolution of m×n of the multi-viewpoint 3Ddisplay screen 100, received by the register 122.

In some embodiments, the 3D processing device 130 is further configuredto perform displacement rendering for subpixels in composite pixelsaccording to viewpoint positions corresponding to subpixels renderedcurrently and next viewpoint positions corresponding to subpixelsrendered in a next frame.

In some embodiments, the 3D display terminal 1000 may further comprise acodec, configured to decompress and code/decode compressed 3D videosignals and send the decompressed 3D video signals to the at least one3D processing device 130 through the video signal interface 140.

In some embodiments, the processor 101 of the 3D display terminal 1000is configured to read the video frames of the 3D video signals from amemory or receive the video frames of the 3D video signals from, beyondthe 3D display terminal 1000, for example, through an externalinterface, and transmit the read or received video frames of the 3Dvideo signals to the at least one 3D processing device 130 through thevideo signal interface 140.

In some embodiments, the 3D display terminal 1000 further comprises aformat adjuster (not shown), for example, integrated into the processor101, constructed as the codec or serving as a part of a GraphicProcessing Unit (GPU), and used for preprocessing the video frames ofthe 3D video signals, so that the two images included therein have theresolution of m×n or the composite image included therein has theresolution of 2m×n or m×2n.

As described above, the 3D display terminal provided by some embodimentsof the present disclosure may be a 3D display terminal including aprocessor. In some embodiments, the 3D display terminal may beconstructed as an intelligent cell phone, a tablet personal computer, asmart television, wearable equipment, vehicle-mounted equipment, alaptop, an Ultra-Mobile Personal Computer (UMPC), a netbook, a PersonalDigital Assistant (PDA) and the like.

In another solution, a 3D display system is further provided, comprisinga processor unit and the above 3D display terminal; and the processorunit is in communication connection with the 3D display terminal.

In some embodiments, the 3D display system is constructed as the smarttelevision having the processor unit; or, the 3D display system is theintelligent cell phone, the tablet personal computer, a personalcomputer or the wearable equipment; or, the 3D display system comprisesa Set Top Box (STB) serving as the processor unit or the cell phone/thetablet personal computer capable of realizing screen projection, and adigital television, serving as the 3D display terminal, which is inwired connection or wireless connection with the STB, the cell phone orthe tablet personal computer; or, the 3D display system is constructedas an intelligent home system or a part thereof, wherein the processorunit comprises an intelligent gateway or a central control unit of theintelligent home system, and the intelligent home system furthercomprises the eye positioning device used for acquiring eye positioningdata; or, the 3D display system is constructed as an entertainmentinteracting system or a part thereof.

Exemplarily, FIG. 2 shows a structural schematic diagram of hardware ofthe 3D display terminal 200 implemented as a large-sized mobileterminal. The 3D display terminal 200 may comprise a processor 201, anexternal memory interface 202, an (internal) memory 203, a UniversalSerial Bus (USB) interface 204, a charging management module 205, apower supply management module 206, a battery 207, a mobilecommunication module 208, a wireless communication module 210, antennas209 and 211, an audio module 212, a loudspeaker 213, a telephonereceiver 214, a microphone 215, an earphone jack 216, a key 217, a motor218, an indicator 219, a Subscriber Identity Module (SIM) card interface220, the multi-viewpoint 3D display screen 110, the 3D processing device130, the video signal interface 140, a shooting unit 221, the eyepositioning device 150, a sensor module 230 and the like, wherein thesensor module 230 may comprise a proximity light sensor 2301, an ambientlight sensor 2302, a pressure sensor 2303, an air pressure sensor 2304,a magnetic sensor 2305, a gravity sensor 2306, a gyroscope sensor 2307,an acceleration sensor 2308, a distance sensor 2309, a temperaturesensor 2310, a fingerprint sensor 2311, a touch sensor 2312, a boneconduction sensor 2313 and the like.

It may be understood that the schematic structures of the embodiments ofthe present disclosure do not form specific limit to the 3D displayterminal 200. In some other embodiments of the present disclosure, the3D display terminal 200 may comprise components more or less than thecomponents shown in the drawings, or certain components are combined, orcertain components are split, or different components are arranged. Thecomponents shown in the drawings may be realized by the hardware,software or the combination of the software and the hardware.

The processor 201 may comprise one or more processing units, and forexample, the processor 201 may comprise an Application Processor (AP), amodulation-demodulation processor, a baseband processor, a GPU 223, anImage Signal Processor (ISP), a controller, a memory, a codec 224, aDigital Signal Processor (DSP), a baseband processor, a Neural NetworkProcessing Unit (NPU) and the like or a combination thereof, whereindifferent processing units may be independent devices, and may also beintegrated in one or more processors.

The processor 201 may be further provided with a high-speed buffer, usedfor storing instructions or data just used or recycled by the processor201. If the processor 201 needs to use the instructions or the dataagain, the instructions or the data may be directly called from thememory.

In some embodiments, the processor 201 may comprise one or moreinterfaces. The interface may comprise an integrated circuit (I2C)interface, an integrated circuit built-in audio (I2S) interface, a PulseCode Modulation (PCM) interface, a Universal AsynchronousReceiver/Transmitter (UART) interface, a Mobile Industry ProcessorInterface (MIPI), a General Purpose Input/Output (GPIO) interface, a SIMinterface, a USB interface and the like.

The I2C interface is a two-way synchronous serial bus, and comprises aSerial Data Line (SDA) and a Serial Clock Line (SCL). In someembodiments, the processor 201 may include a plurality of groups of I2Cbuses. The processor 201 may be in communication connection with thetouch sensor 2312, a charger, a flash lamp, the shooting unit 221, theeye positioning device 150 and the like through different I2C businterfaces respectively.

Both the I2S interface and the PCM interface may be used for audiocommunication.

The UART interface is a universal serial data bus, used for asynchronouscommunication. The bus may be a two-way communication bus. The bus isconfigured to convert to-be-transmitted data between serialcommunication and parallel communication. In some embodiments, the UARTinterface is used for connecting the processor 201 and the wirelesscommunication module 210.

In an embodiment shown in FIG. 2 , the MIPI may be used for connectingthe processor 201 and the multi-viewpoint 3D display screen 110.Additionally, the MIPI may also be used for connecting peripheraldevices, such as the shooting unit 221, the eye positioning device 150and the like.

The GPIO interface may be configured by software. The GPIO interface maybe configured as a control signal and may also be configured as a datasignal. In some embodiments, the GPIO interface may be used forconnecting the processor 201, the shooting unit 221, the multi-viewpoint3D display screen 110, the wireless communication module 210, the audiomodule 212, the sensor module 230 and the like

The USB interface 204 is an interface according with the USB standardspecification, and specifically, may be a Mini USB interface, a MicroUSB interface, a USB Type C interface and the like. The USB interface204 may be used for connecting the charger for charging the 3D displayterminal 200, and may also be used for transmitting data between the 3Ddisplay terminal 200 and peripheral equipment. The USB interface 204 mayalso be used for connecting an earphone, and audios are played by theearphone.

It may be understood that interface connection relationships between themodules, which are shown in the embodiments of the present disclosure,are only the schematic description, and do not form a limitation to thestructure of the 3D display terminal 200.

A wireless communication function of the 3D display terminal 200 may berealized by the antennas 209 and 211, the mobile communication module208, the wireless communication module 210, the modulation-demodulationprocessor or the baseband processor and the like.

The antennas 209 and 211 are used for emitting and receivingelectromagnetic wave signals. Each antenna in the 3D display terminal200 may be used for covering single or more communication bands.Different antennas may be further reused, so as to improve theutilization rate of the antennas.

The mobile communication module 208 may provide a solution of wirelesscommunication comprising 2G/3G/4G/5G and the like, which is applied onthe 3D display terminal 200. The mobile communication module 208 maycomprise at least a wave filter, a switch, a power amplifier, a LowNoise Amplifier (LNA) and the like. The mobile communication module 208may be configured to receive electromagnetic waves by the antenna 209,perform wave filtering, amplifying and the like for the receivedelectromagnetic waves, and transmit the received electromagnetic wavesto the modulation-demodulation processor for demodulation. The mobilecommunication module 208 may be further configured to amplify signalsafter being modulated by the modulation-demodulation processor, convertthe amplified signals into the electromagnetic waves by the antenna 209and radiate the electromagnetic waves out. In some embodiments, at leasta part of functional modules of the mobile communication module 208 maybe arranged in the processor 201. In some embodiments, at least a partof functional modules of the mobile communication module 208 and atleast a part of modules of the processor 201 may be arranged in a samedevice.

The wireless communication module 210 may provide a solution of wirelesscommunication comprising a Wireless Local Area Network (WLAN), Bluetooth(BT), a Global Navigation Satellite System (GNSS), Frequency Modulation(FM), a Near Field Communication (NFC) technology, an Infrared Radiation(IR) technology and the like, which is applied on the 3D displayterminal 200. The wireless communication module 210 may be one or moredevices integrated with at least one communication processing module.The wireless communication module 210 is configured to receiveelectromagnetic waves by the antenna 211, perform FM and wave filteringfor electromagnetic wave signals, and send the processed signals to theprocessor 201. The wireless communication module 210 may be furtherconfigured to receive to-be-sent signals from the processor 201, performFM and amplifying for the received signals, convert the processedsignals into electromagnetic waves by the antenna 211 and radiate theelectromagnetic waves out.

In some embodiments, the antenna 209 of the 3D display terminal 200 iscoupled with the mobile communication module 208, and the antenna 211 iscoupled with the wireless communication module 210, so that the 3Ddisplay terminal 200 may realize communication with a network and otherequipment through a wireless communication technology. The wirelesscommunication technology may comprise a Global System for MobileCommunications (GSM), a General Packet Radio Service (GPRS), CodeDivision Multiple Access (CDMA), Wideband Code Division Multiple Access(WCDMA), Time Division-Synchronization Code Division Multiple Access(TD-SCDMA), Long Term Evolution (LIE), the BT, the GNSS, the WLAN, theNFC, the FM, and/or the IR technology and the like. The GNSS maycomprise a Global Positioning System (GPS), a Global NavigationSatellite System (GLONASS), a Beidou Navigation Satellite System (BDS),a Quasi-Zenith Satellite System (QZSS) and/or a Satellite BasedAugmentation System (SBAS).

In some embodiments, the external interface used for receiving the 3Dvideo signals may comprise the USB interface 204, the mobilecommunication module 208, the wireless communication module 210 or thecombination thereof. Additionally, other feasible interfaces used forreceiving the 3D video signals, such as the above interfaces, may befurther contemplated.

The memory 203 may be used for storing computer executable programcodes, and the executable program codes comprise instructions. Theprocessor 201 is configured to operate the instructions stored in thememory 203, so as to execute various function applications of the 3Ddisplay terminal 200 and data processing. The memory 203 may comprise aprogram storage area and a data storage area, wherein the programstorage area may be configured to store an operation system, anapplication program required by at least one function (such as an audioplaying function and an image playing function) and the like. The datastorage area may be configured to store data (such as audio data andphone books) and the like that are established in a using process of the3D display terminal 200. Additionally, the memory 203 may comprise ahigh-speed RAM (Random Access Memory), and may further comprise anonvolatile memory, such as at least one disk storage device, a flashmemory device, a Universal Flash Storage (UFS) and the like.

The external memory interface 202 may be used for connecting an externalstorage card, such as a Micro SD (Secure Digital) card, so as to extendthe storage capacity of the 3D display terminal 200. The externalstorage card is in communication with the processor 201 through theexternal memory interface 202, so as to realize a data storage function.

In some embodiments, the memory of the 3D display terminal may comprisethe (internal) memory 203, the external storage card connected with theexternal memory interface 202 or a combination thereof. In some otherembodiments of the present disclosure, the video signal interface mayalso adopt different internal interface connection manners in the aboveembodiments or a combination thereof.

In some embodiments of the present disclosure, the shooting unit 221 maybe configured to acquire images or videos.

In some embodiments, the 3D display terminal 200 realizes a displayfunction through the video signal interface 140, the 3D processingdevice 130, the multi-viewpoint 3D display screen 110, the AP and thelike.

In some embodiments, the 3D display terminal 200 may comprise the GPU,and for example, is used for processing 3D video images in the processor201, and may also be used for processing 2D video images.

In some embodiments, the 3D display terminal 200 may further comprisethe codec 224, used for compressing or decompressing digital videos.

In some embodiments, the video signal interface 140 is used foroutputting the video frames of the 3D video signals, such as thedecompressed 3D video signals, processed by the GPU or the codec 224 orthe GPU and the codec 224, to the 3D processing device 130.

In some embodiments, the GPU or the codec 224 is integrated with theformat adjuster.

The multi-viewpoint 3D display screen 110 is used for displaying 3Dimages or videos and the like. The multi-viewpoint 3D display screen 110comprises the display panel. The display panel may adopt a LiquidCrystal Display (LCD), an Organic Light Emitting Diode (OLED), an ActiveMatrix/Organic Light Emitting Diode (AMOLED), a Flexible Light EmittingDiode (FLED), a Mini-LED, a Micro-LED, a Micro-OLED, a Quantum Dot LightEmitting Diode (QLED) and the like.

In some embodiments, the eye positioning device 150 is in communicationconnection with the 3D processing unit 130, so that the 3D processingunit 130 may be configured to render the corresponding subpixels in thecomposite pixels (composite subpixels) based on the eye positioningdata. In some embodiments, the eye positioning device 150 may be furtherconnected with the processor 201, and for example, a bypass is connectedwith the processor 201.

The 3D display terminal 200 may realize an audio function, such as musicplaying, recording and the like, through the audio module 212, theloudspeaker 213, the telephone receiver 214, the microphone 215, theearphone jack 216, the AP and the like. The audio module 212 is used forconverting digital audio information into analog audio signals andoutputting the analog audio signals, and is also used for inputtinganalog audios and converting the input analog audios into digital audiosignals. The audio module 212 may be further used for coding anddecoding the audio signals. In some embodiments, the audio module 212may be arranged in the processor 201, or part of functional modules ofthe audio module 212 are arranged in the processor 201. The loudspeaker213 is used for converting electrical audio signals into sound signals.The 3D display terminal 200 may be configured to listen in to music orhands-free calls through the loudspeaker 213. The telephone receiver214, also called ‘a handset’, is used for converting the electricalaudio signals into the sound signals. When the 3D display terminal 200is used for answering the calls or voice information, the telephonereceiver 214 may be close to ears to answer voices. The microphone 215is used for converting the sound signals into electrical signals. Theearphone jack 216 is used for connecting a wired headset. The earphonejack 216 may be the USB interface 204, and may also be an Open MobileTerminal Platform (OMTP) standard interface of 3.5 mm and a CellularTelecommunications Industry Association of America (CTIA) standardinterface.

The key 217 comprises a power button, a volume button and the like. Thekey 217 may be a mechanical key, and may also be a touch key. The 3Ddisplay terminal 200 may be configured to receive key input, to generatekey signal input related to user settings and functional control of the3D display terminal 200.

The motor 218 may generate a vibration alert. The motor 218 may be usedfor the vibration alert for the calls, and may also be used for a touchvibration feedback.

The SIM card interface 220 is used for connecting an SIM card. In someembodiments, the 3D display terminal 200 adopts an eSIM, i.e. anembedded SIM card.

The pressure sensor 2303 is used for feeling pressure signals, and maybe used for converting the pressure signals into electrical signals. Insome embodiments, the pressure sensor 2303 may be arranged in themulti-viewpoint 3D display screen 110, which falls into the scope of thepresent invention.

The air pressure sensor 2304 is used for measuring air pressure. In someembodiments, the 3D display terminal 200 is configured to calculatealtitude through an air pressure value measured by the air pressuresensor 2304, so as to assist positioning and navigation.

The magnetic sensor 2305 comprises a Hall sensor.

The gravity sensor 2306 is a sensor for converting movement or gravityinto electrical signals, and is mainly used for measuring parameterssuch as an inclination angle, inertia force, impact, vibration and thelike.

The gyroscope sensor 2307 may be used for determining a moving postureof the 3D display terminal 200.

The acceleration sensor 2308 may be used for detecting a size of anacceleration of the 3D display terminal 200 in each direction (threeaxes in general).

The distance sensor 2309 may be used for measuring a distance.

The temperature sensor 2310 may be used for detecting temperature.

The fingerprint sensor 2311 is used for acquiring fingerprints. The 3Ddisplay terminal 200 may realize fingerprint unlocking, access to anapplication lock, fingerprint shooting, fingerprint answering of thecalls and the like by utilizing the acquired fingerprints.

The touch sensor 2312 may be arranged in the multi-viewpoint 3D displayscreen 110, and the touch sensor 2312 and the multi-viewpoint 3D displayscreen 110 form a touch screen, also called ‘a touch control screen’.

The bone conduction sensor 2313 may be used for acquiring vibrationsignals.

The charging management module 205 is used for receiving charging inputfrom the charger, wherein the charger may be a wireless charger, and mayalso be a wired charger. In some embodiments of wired charging, thecharging management module 205 may be configured to receive charginginput of the wired charger through the USB interface 204. In someembodiments of wireless charging, the charging management module 205 maybe configured to receive wireless charging input through a wirelesscharging coil of the 3D display terminal 200.

The power supply management module 206 is used for connecting thebattery 207, the charging management module 205 and the processor 201.The power supply management module 206 is configured to receive input ofthe battery 207 and/or the charging management module 205, so as tosupply power for the processor 201, the memory 203, an external memory,the multi-viewpoint 3D display screen 110, the shooting unit 221, thewireless communication module 210 and the like. In some otherembodiments, the power supply management module 206 and the chargingmanagement module 205 may also be arranged in a same device.

A software system of the 3D display terminal 200 may adopt a layeredarchitecture, an event-driven architecture, a micro-kernel architecture,a micro-service architecture, or a cloud architecture. The embodimentsshown in the present disclosure take an Android system in the layeredarchitecture as an example, and exemplarily illustrate a softwarestructure of the 3D display terminal 200. However, it may becontemplated that the embodiments of the present disclosure may beimplemented in different software systems, such as an operating system.

FIG. 3 is a structural schematic diagram of software of the 3D displayterminal 200 according to the embodiments of the present disclosure. Thesoftware is divided into a plurality of layers by the layeredarchitecture. The communication between the layers is realized through asoftware interface. In some embodiments, the Android system is dividedinto four layers, comprising an application program layer 310, aframework layer 320, a core class library and Runtime 330 and a kernellayer 340 from top to bottom in sequence.

The application program layer 310 may comprise a series of applicationprogram packets. As shown in FIG. 3 , the application program packetsmay comprise application programs such as BT, WLAN, navigation, music, acamera, a calendar, calling, a video, a map depot, a map, a shortmessage and the like. A 3D video display method according to theembodiments of the present disclosure, for example, may be implementedin a video application program.

The framework layer 320 is configured to provide Application ProgrammingInterfaces (APIs) and programming frameworks for the applicationprograms of the application program layer. The framework layer comprisessome predefined functions. For example, in some embodiments of thepresent disclosure, functions or algorithms for identifying the acquired3D video images, algorithms for processing the images and the like maybe included in the framework layer.

As shown in FIG. 3 , the framework layer 320 may comprise a resourcemanager, a phone manager, a content manager, a notice manager, a windowmanager, a view system, an installation packet manager and the like.

Android Runtime comprises a core library and a virtual machine. TheAndroid Runtime is in charge of scheduling and management of the Androidsystem.

The core library includes two parts: one part is a functional functionthat a java language needs to call, and the other part is an Androidcore library.

The application program layer and the framework layer operate in thevirtual machine. The virtual machine is configured to execute java filesof the application program layer and the framework layer to binaryfiles. The virtual machine is used for executing functions such asmanagement for an object life cycle, stack management, threadmanagement, management for security and abnormity, garbage collectionand the like.

The core class library may comprise a plurality of functional modules,such as: a 3D graphic processing library (such as an Open GraphicsLibrary Expert System (OpenGL ES)), a surface manager, an imageprocessing library, a media library, a graphics engine (such as: a SkiaGraphics Library (SGL)) and the like.

The kernel layer 340 is a layer between the hardware and the software.The kernel layer at least includes a camera driver, an audio-videointerface, a calling interface, a Wifi interface, a sensor driver, powermanagement and a GPS interface.

Here, the 3D display terminal, serving as the mobile terminal, in astructure shown in FIG. 2 and FIG. 3 is taken as an example, and anembodiment of 3D video transmission and display in the 3D displayterminal is described; however, it may be contemplated that more or lessfeatures may be comprised or the features therein are changed in someother embodiments.

In some embodiments, for example, the 3D display terminal 200, such asthe intelligent cell phone or the tablet personal computer, serving asthe mobile terminal, is configured to receive, for example thecompressed 3D video signals, from the network, such as a cellularnetwork, a WLAN network and BT, for example by virtue of the mobilecommunication module 208 and the antenna 209 or the wirelesscommunication module 210 and the antenna 221, serving as externalinterfaces; image processing is performed for the compressed 3D videosignals, for example by the GPU 223, and the processed 3D video signalsare coded/decoded and decompressed by the codec 224; then thedecompressed 3D video signals are sent to the at least one 3D processingdevice 130, for example through the video signal interface 140, such asthe MIPI or the mini-MIPI, serving as the internal interface; and eachvideo frame of the decompressed 3D video signals comprises the twoimages or the composite image of the embodiments of the presentdisclosure. Then, the 3D processing device 130 is configured tocorrespondingly render the subpixels in the composite subpixels of thedisplay screen, so as to realize 3D video playing.

In some other embodiments, the 3D display terminal 200 is configured toread the (internal) memory 203 or read the compressed 3D video signalsstored in the external storage card by the external memory interface202, and the 3D video playing is realized through correspondingprocessing, transmission and rendering.

In some embodiments, the above 3D video playing is implemented in thevideo application program in the application program layer 310 of theAndroid system.

In some embodiments, each video frame of the above 3D video signalsincludes a composite image with the resolution of 2m×n or m×2n, so thatafter the video frames of the above 3D video signals are transmitted, atleast two subpixels in each composite subpixel of all the compositepixels of the multi-viewpoint 3D display screen 110 are rendered basedon the composite images.

In some embodiments, the 3D display terminal 200 may comprise the eyepositioning device or may read the eye positioning data, so as toacquire or read real-time eye positioning data of the user, so thatdynamic rendering for the multi-viewpoint 3D display screen 110 isrealized.

The equipment, the devices, the modules or the units illustrated in theabove embodiments may be realized by various possible entities. Atypical realizing entity is the computer or the processor thereof orother components. Specifically, the computer, for example, may be thepersonal computer, a laptop computer, vehicle-mounted human-computerinteraction equipment, the cell phone, a camera phone, an intelligentphone, the PDA, a media player, navigation equipment, E-mail equipment,a game console, the tablet personal computer, the wearable equipment,the smart television, an Internet of Things (IoT) system, smart home, anindustrial computer, a singlechip system or a combination thereof. In atypical configuration, the computer may comprise one or more CentralProcessing Units (CPUs), an input/output interface, a network interfaceand a memory. The memory probably comprises a volatile memory, an RAMand/or a nonvolatile memory and other forms in a computer readablemedium, such as a Read Only Memory (ROM) or a flash RAM.

The method, the programs, the equipment, the devices and the like in theembodiments of the present invention may be executed or realized in oneor more networked computers, and may also be implemented in distributedcomputing environments. In the embodiments of the description, in thedistributed computing environments, tasks are executed by remoteprocessing equipment connected by a communication network.

Those skilled in the art should understand that the embodiments of thedescription may provide the method, the equipment or computer programproducts. Therefore, the embodiments of the description may adopt formsof full-hardware embodiments, full-software embodiments or embodimentscombining software and hardware aspects.

Those skilled in the art may contemplate that the functionalmodules/units or the controller and related method steps, illustrated inthe above embodiments, may be realized in a software manner, a hardwaremanner and a software/hardware combination manner, and for example, maybe realized in a pure computer readable program code manner, and logicprogramming can also be performed for part or all of the method steps toenable the controller to realize same functions by the hardware,comprising but not limited to a logic gate, a switch, a specialintegrated circuit, a Programmable Logic Controller (PLC) (such as theFPGA) and an embedded microcontroller.

In some embodiments of the present invention, the components of thedevices are described in a form of the functional modules/units. It maybe contemplated that a plurality of functional modules/units arerealized in one or more ‘combined’ functional modules/units and/or oneor more software and/or hardware. It may also be contemplated that thesingle functional module/unit is realized by the combination of aplurality of sub-functional modules/sub-units and/or multiple softwareand/or hardware. The division of the functional modules/units may beonly a logic function division, and in a specific realizing manner, theplurality of functional modules/units may be combined or may beintegrated into another system. Additionally, the connection of themodules, the units, the devices, the systems and the components thereofin the text comprises direct or indirect connection, covering feasibleelectrical, mechanical and communication connection, especiallycomprising wired or wireless connection between various interfaces,comprising but not limited to a High-Definition Multimedia Interface(HDMI), thunders, the USB, the WiFi and the cellular network.

In the embodiments of the present invention, the technical features, theflow charts and/or the block diagrams of the method and the programs maybe applied in the corresponding devices, equipment and systems as wellas the modules, the units and the components thereof. On the contrary,all the embodiments and features of the devices, the equipment, thesystems as well as the modules, the units and the components thereof maybe applied in the method and the programs according to the embodimentsof the present invention. For example, a computer program instructionmay be loaded in a general-purpose computer, a special computer, anembedded processor or a processor of other programmable data processingequipment to generate a machine which has corresponding functions orfeatures realized in one program or more programs of the flow chartsand/or one block or more blocks of the block diagrams.

The method and the programs according to the embodiments of the presentinvention may be stored in a computer readable memory or medium whichcan guide the computer or other programmable data processing equipmentto work in a specific manner by way of the computer program instructionsor programs. The embodiments of the present invention also relate to thereadable memory or medium which stores the method, the programs and theinstructions which can implement the embodiments of the presentinvention.

A storage medium comprises permanent and impermanent articles and mobileand immobile articles that may be used for realizing information storageby any method or technology. The information may be modules of acomputer readable instruction, a data structure and a program or otherdata. Examples of the storage medium comprise, but not limited to aPhase-Change Random Access Memory (PRAM), a Static Random Access Memory(SRAM), a Dynamic Random Access Memory (DRAM), other types of RAMs,ROMs, Electrically Erasable Programmable Read-Only Memories (EEPROMs),flash memories or other memory technologies, Compact Disc Read-OnlyMemories (CD-ROMs) and Digital Video Disks (DVDs) or other opticalmemories and magnetic cassette tapes, and tape disk storage equipment orother magnetic storage equipment or any other non-transmission mediummay be used for storing information which may be accessed by calculatingequipment.

Unless clearly pointed out, actions or steps of the method and theprograms recorded according to the embodiments of the present inventionare not necessarily executed according to a specific sequence, and anexpected result may still be realized. In some implementation manners,multitasking and parallel processing are also permissible or areprobably favorable.

In the text, multiple embodiments of the present invention aredescribed, but for simplicity, the description for all the embodimentsis not elaborate, and same and similar features or parts between theembodiments are probably neglected. In the text, ‘an embodiment’, ‘someembodiments’, ‘examples’, ‘specific examples’ or ‘some examples’ referto being suitable for at least one embodiment or example according tothe present invention, rather than all the embodiments. The above termsare not necessarily meant to refer to the same embodiment or example. Inaddition, the specific features, structures, materials orcharacteristics of all the embodiments may be combined in a propermanner in any one or more embodiments or examples. Additionally, underthe condition of no mutual contradiction, those skilled in the art maycombine and integrate different embodiments or examples and the featuresof the different embodiments or examples, which are described in thedescription.

In the text, the term ‘comprise’, ‘include’ or a variant thereof refersto a covering form, rather than an exhaustive form, so that the process,the method, the products or the equipment, comprising a series ofelements, may comprise the elements, and non-exclusively, may furthercomprise other elements that are not listed clearly. For the purpose ofthe disclosure and unless specifically described, ‘one’ refers to ‘oneor more’. The term ‘comprise’ or ‘comprised’ used in the description andthe claims is non-exclusive, which is similar to ‘include’ to a certaindegree, because the terms, when serving as transitional conjunctions,are explanatory. Additionally, the used term ‘or’ (such as A or B)refers to ‘A or B, or A and B’. When an applicant intends to indicate‘only A or B, rather than A and B’, ‘only A or B, rather than A and B’will be used. Therefore, the use of the term ‘or’ is included, ratherthan non-exclusive.

The exemplary system and method of the present invention arespecifically shown and described with reference to the aboveembodiments, and are only optimal modes of examples for implementing thesystem and the method. Those skilled in the art may understand that whenthe system and/or the method is implemented, various changes may be madeto the embodiments of the system and the method described here, withoutdeparting from the spirit and the scope, defined in the attached claims,of the present invention. The attached claims are intended to define thescope of the system and the method, and therefore, the system and themethod, falling in the claims and being equivalent thereto, may becovered. The above illustration for the system and the method should beunderstood to comprise all combinations of new and non-obvious elementsdescribed here, while the claims relating to any combination of the newand non-obvious elements may exist in the present disclosure or thefollow-up application. Additionally, the above embodiments areexemplary, and in all possible combinations that may be claimed in thepresent disclosure or the follow-up application, no single feature orelement is essential.

1. A multi-viewpoint 3D display screen, comprising: a display panel,comprising a plurality of composite pixels, wherein each composite pixelof the plurality of composite pixels comprises a plurality of compositesubpixels, and each composite subpixel of the plurality of compositesubpixels comprises a plurality of subpixels corresponding to aplurality of viewpoints of the multi-viewpoint 3D display screen; and agrating, directly bonded to the display panel.
 2. The multi-viewpoint 3Ddisplay screen according to claim 1, wherein a width p of each subpixelof the plurality of subpixels is constructed as:p

(d×q)/(n×D), wherein d represents a sum of a thickness of the displaypanel and a thickness of the grating; q represents a reference distanceof an interpupillary distance; D represents a preset viewing distance ofthe multi-viewpoint 3D display screen; and n represents a refractiveindex of the grating.
 3. The multi-viewpoint 3D display screen accordingto claim 2, wherein 1.3

n

1.6.
 4. The multi-viewpoint 3D display screen according to claim 3,wherein n=1.46.
 5. The multi-viewpoint 3D display screen according toclaim 1, wherein each composite subpixel comprises a plurality ofsubpixels that are arranged in a single row or a single column; or eachcomposite subpixel comprises a plurality of subpixels that are arrangedin a form of array.
 6. The multi-viewpoint 3D display screen accordingto claim 1, wherein the plurality of composite subpixels comprise atleast one of red composite subpixels, green composite subpixels and bluecomposite subpixels.
 7. The multi-viewpoint 3D display screen accordingto claim 1, wherein a size of the multi-viewpoint 3D display screen isgreater than or equal to 43 inches.
 8. The multi-viewpoint 3D displayscreen according to claim 7, wherein a size of the multi-viewpoint 3Ddisplay screen is 55 inches, 60 inches, 80 inches or 100 inches; or themulti-viewpoint 3D display screen is a cinema screen.
 9. Themulti-viewpoint 3D display screen according to claim 8, wherein a widthof each subpixel of the plurality of subpixels is less than 0.008 mm.10. The multi-viewpoint 3D display screen according to claim 9, whereina width of each subpixel of the plurality of subpixels is less than0.0076 mm.
 11. The multi-viewpoint 3D display screen according to claim1, wherein the display panel comprises: a first substrate; a secondsubstrate, arranged at an interval with the first substrate; a colorfilter, attached to a surface, facing the second substrate, of the firstsubstrate; a Thin Film Transistor (TFT), attached to a surface, facingthe first substrate, of the second substrate; a polarizer, attached to asurface, away from the first substrate, of the second substrate; and aliquid crystal layer, arranged between the first substrate and thesecond substrate, wherein the grating is directly bonded to a surface,away from the second substrate, of the first substrate.
 12. Themulti-viewpoint 3D display screen according to claim 11, wherein thegrating is obliquely bonded to the display panel.
 13. Themulti-viewpoint 3D display screen according to claim 12, wherein thegrating comprises a plurality of cylindrical prism gratings.
 14. A 3Ddisplay terminal, comprising a multi-viewpoint 3D display screen,wherein the multi-viewpoint 3D display screen comprises: a displaypanel, comprising a plurality of composite pixels, wherein eachcomposite pixel of the plurality of composite pixels comprises aplurality of composite subpixels, and each composite subpixel of theplurality of composite subpixels comprises a plurality of subpixelscorresponding to a plurality of viewpoints of the multi-viewpoint 3Ddisplay screen; and a grating, directly bonded to the display panel. 15.The 3D display terminal according to claim 14, further comprising a 3Dprocessing device, configured to render corresponding subpixels in theplurality of composite subpixels in the multi-viewpoint 3D displayscreen based on 3D signals.
 16. The 3D display terminal according toclaim 15, wherein the 3D processing device is further configured toperform displacement rendering for subpixels in composite subpixelsaccording to viewpoint positions corresponding to subpixels renderedcurrently and viewpoint positions corresponding to subpixels renderedsubsequently.
 17. The 3D display terminal according to claim 14, furthercomprising a memory, configured to store corresponding relationships ofsubpixels and viewpoints, wherein the 3D processing device is configuredto acquire the corresponding relationships.
 18. The 3D display terminalaccording to claim 14, further comprising an eye positioning dataacquisition device, configured to acquire eye positioning data of auser.
 19. The 3D display terminal according to claim 14, wherein a widthp of each subpixel of the plurality of subpixels is constructed as:p

(d×q)/(n×D), wherein d represents a sum of a thickness of the displaypanel and a thickness of the grating; q represents a reference distanceof an interpupillary distance; D represents a preset viewing distance ofthe multi-viewpoint 3D display screen; and n represents a refractiveindex of the grating.
 20. The 3D display terminal according to claim 19,wherein 1.3

n

1.6.